10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 29, 2026

OR

☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________ to ________

Commission File No. 001-06462

TERADYNE, INC.

(Exact name of registrant as specified in its charter)

Massachusetts	04-2272148
(State or Other Jurisdiction of<br><br>Incorporation or Organization)	(I.R.S. Employer<br><br>Identification No.)
600 Riverpark Drive, North Reading,<br><br>Massachusetts	01864
(Address of Principal Executive Offices)	(Zip Code)

978-370-2700

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading<br><br>Symbol(s)	Name of each exchange<br><br>on which registered
Common Stock, par value $0.125<br><br>per share	TER	Nasdaq Stock Market LLC

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to the filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files) Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company”, and “emerging growth company” in Rule 12b-2 of the Exchange Act (check one):

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Emerging growth company	☐
Smaller reporting company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The number of shares outstanding of the registrant’s only class of Common Stock as of April 27, 2026, was 156,542,162 shares.

TERADYNE, INC.

INDEX

		Page No.
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited):	1
	Condensed Consolidated Balance Sheets as of March 29, 2026, and December 31, 2025	1
	Condensed Consolidated Statements of Operations for the Three Months Ended March 29, 2026, and March 30, 2025	2
	Condensed Consolidated Statements of Comprehensive Income for the Three Months Ended March 29, 2026, and March 30, 2025	3
	Condensed Statements of Shareholders’ Equity for the Three Months Ended March 29, 2026, and March 30, 2025	4
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 29, 2026, and March 30, 2025	5
	Notes to Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	29
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	36
Item 4.	Controls and Procedures	36
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	38
Item 1A.	Risk Factors	38
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	39
Item 4.	Mine Safety Disclosures	39
Item 5.	Other Information	40
Item 6.	Exhibits	42

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
	(in thousands, except per share amount)
Revenues:
Products	$	1,142,971		$	561,958
Services		139,523			123,722
Total revenues		1,282,494			685,680
Cost of revenues:
Cost of products		453,447			224,142
Cost of services		48,098			46,202
Total cost of revenues (exclusive of acquired intangible <br>   assets amortization shown separately below)		501,545			270,344
Gross profit		780,949			415,336
Operating expenses:
Selling and administrative		166,737			157,257
Engineering and development		135,561			118,188
Acquired intangible assets amortization		2,224			4,573
Restructuring and other		3,425			14,515
Total operating expenses		307,947			294,533
Income from operations		473,002			120,803
Non-operating (income) expense:
Interest income		(2,422	)		(5,076	)
Interest expense		3,151			795
Other (income) expense, net		6,597			6,060
Income before income taxes and equity in net earnings of affiliate		465,676			119,024
Income tax provision		62,157			14,544
Income before equity in net earnings of affiliate		403,519			104,480
Equity in net earnings of affiliate		(4,611	)		(5,584	)
Net income	$	398,908		$	98,896
Net income per common share:
Basic	$	2.55		$	0.61
Diluted	$	2.53		$	0.61
Weighted average common shares—basic		156,410			161,501
Weighted average common shares—diluted		157,636			161,996

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements.

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

			March 30,<br>2025
Net income	398,908		$	98,896
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax of 0, and 0, respectively	(19,933	)		39,319
Available-for-sale marketable securities:
Unrealized (losses) gains on marketable securities arising during period, net of tax of (244),   and 132, respectively	(1,540	)		620
Less: Reclassification adjustment for (gains) losses included in net income, net of tax of (4),   and 21, respectively	(42	)		75
	(1,582	)		695
Cash flow hedges:
Unrealized (losses) gains arising during period, net of tax of 0, and (58), respectively	—			(202	)
Less: Reclassification adjustment for losses (gains) included in net income, net of tax of 0,    and (166), respectively	—			(582	)
	—			(784	)
Defined benefit post-retirement plan:
Amortization of prior service credit, net of tax of 0, and 0, respectively	(1	)		(2	)
Other comprehensive income (loss)	(21,516	)		39,228
Comprehensive income	377,392		$	138,124

All values are in US Dollars.

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements.

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(Unaudited)

			Common <br>Stock <br>Par Value			Additional <br>Paid-in <br>Capital			Accumulated <br>Other <br>Comprehensive <br>Income (Loss)			Retained <br>Earnings			Total <br>Shareholders’ <br>Equity
For the Three Months Ended March 29, 2026
Balance, December 31, 2025	156,088		$	19,511		$	1,989,911		$	41,895		$	744,435		$	2,795,752
Net issuance of common stock under stock-based plans	476			60			(24,471	)								(24,411	)
Stock-based compensation expense							20,649									20,649
Repurchase of common stock	(24	)		(3	)								(5,201	)		(5,204	)
Cash dividends (0.13 per share)													(20,362	)		(20,362	)
Net income													398,908			398,908
Other comprehensive income (loss)										(21,516	)					(21,516	)
Balance, March 29, 2026	156,540		$	19,568		$	1,986,089		$	20,379		$	1,117,780		$	3,143,816
For the Three Months Ended March 30, 2025
Balance, December 31, 2024	161,722		$	20,215		$	1,909,538		$	(81,220	)	$	970,761		$	2,819,294
Net issuance of common stock under stock-based plans	432			54			13									67
Stock-based compensation expense							16,629									16,629
Repurchase of common stock	(1,480	)		(185	)								(157,016	)		(157,201	)
Cash dividends (0.12 per share)													(19,414	)		(19,414	)
Net income													98,896			98,896
Other comprehensive income (loss)										39,228						39,228
Balance, March 30, 2025	160,674		$	20,084		$	1,926,180		$	(41,992	)	$	893,227		$	2,797,499

All values are in US Dollars.

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements.

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
	(in thousands)
Cash flows from operating activities:
Net income	$	398,908		$	98,896
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation		30,240			25,523
Stock-based compensation		21,902			15,204
Equity in net earnings of affiliate		4,611			5,584
Losses (gains) on investments		3,317			3,372
Provision for excess and obsolete inventory		4,682			4,945
Amortization		2,415			4,779
Deferred taxes		(7,777	)		(7,811	)
Other		2,286			3,483
Changes in operating assets and liabilities, net of businesses acquired:
Accounts receivable		(322,017	)		13,053
Inventories		20,827			(31,049	)
Prepayments and other assets		4,049			13,650
Accounts payable and other liabilities		(15,025	)		(9,950	)
Deferred revenue and customer advances		51,964			10,200
Retirement plans contributions		(1,534	)		(1,282	)
Income taxes		66,276			13,040
Net cash provided by operating activities		265,124			161,637
Cash flows from investing activities:
Purchases of property, plant and equipment		(64,733	)		(64,021	)
Acquisition of businesses, net of cash acquired		—			(17,002	)
Purchase of investment in a business		—			(3,011	)
Purchases of marketable securities		(40,797	)		(10,753	)
Proceeds from maturities of marketable securities		10,910			27,381
Proceeds from sales of marketable securities		27,328			5,633
Net cash used for investing activities		(67,292	)		(61,773	)
Cash flows from financing activities:
Proceeds from borrowings on revolving credit facility		50,000			—
Repayments of borrowings on revolving credit facility		(250,000	)		—
Dividend payments		(20,362	)		(19,406	)
Repurchase of common stock		(5,518	)		(157,475	)
Payments related to net settlement of employee stock compensation awards		(39,437	)		(14,726	)
Issuance of common stock under stock purchase and stock option plans		15,101			14,792
Net cash used for financing activities		(250,216	)		(176,815	)
Effects of exchange rate changes on cash and cash equivalents		577			(771	)
Decrease in cash and cash equivalents		(51,807	)		(77,722	)
Cash and cash equivalents at beginning of period		293,751			553,354
Cash and cash equivalents at end of period	$	241,944		$	475,632
Non-cash investing activities:
Capital expenditures incurred but not yet paid:	$	5,420		$	7,135

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements.

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

A. THE COMPANY

Teradyne, Inc. (“Teradyne”) is a leading global provider of automated test equipment and robotics solutions. Teradyne’s automated test systems are used to test semiconductors, wireless products, data storage, silicon photonics, and complex electronics systems in many industries including consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Teradyne’s robotics product offerings consist primarily of collaborative robotic arms and autonomous mobile robots used by global manufacturing, logistics and industrial customers to improve quality and increase manufacturing and material handling efficiency while reducing costs. Teradyne’s automated test equipment and robotics products and services include:

• semiconductor test (“Semiconductor Test”) systems;
• robotics (“Robotics”) products; and
• product test (“Product Test”) systems, which include circuit-board test and inspection systems, wireless test systems, photonic integrated circuit (“PIC”) test solutions, and defense and aerospace test instrumentation and systems.

B. ACCOUNTING POLICIES

Basis of Presentation

The condensed consolidated interim financial statements include the accounts of Teradyne and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These condensed consolidated interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such condensed consolidated interim financial statements. The December 31, 2025, condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by United States of America generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on February 19, 2026, for the year ended December 31, 2025.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities. On an on-going basis, management evaluates its estimates, including those related to inventories, investments, goodwill, intangible and other long-lived assets, accounts receivable, income taxes, deferred tax assets and liabilities, pensions, warranties, and loss contingencies. Management bases its estimates on historical experience and on appropriate and customary assumptions that are believed to be reasonable under the circumstances, which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Management is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change, as new events occur and additional information is obtained. Actual results may differ significantly from these estimates under different assumptions or conditions.

C. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-03-“Income Statement - Reporting Comprehensive Income -Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses”, which requires disclosure of additional expense information on an annual and interim basis, including the amounts of inventory purchases, employee compensation, depreciation, and intangible asset amortization included within each income statement expense caption. This standard is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. Teradyne is currently evaluating the impact of this new standard.

In July 2025, the FASB issued ASU 2025-05 - “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets”, which introduces a practical expedient related to the estimation of expected

credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under ASC 606. The practical expedient permits all entities to assume that current conditions as of the balance sheet date do not change for the remaining life of the asset. This standard is in effect as of December 15, 2025. This ASU had no impact on results of operations, cash flows or financial condition.

D. ACQUISITIONS

Quantifi Photonics

On May 31, 2025, Teradyne acquired all of the issued and outstanding shares of Quantifi Photonics (“Quantifi”), a privately held company in New Zealand and a leader in photonic integrated circuit (“PIC”) test solutions for a total purchase price of $127.2 million. The acquisition of Quantifi enables Teradyne to deliver scalable PIC test solutions. Teradyne’s allocation of the purchase price was goodwill of $83.1 million, which is not deductible for tax purposes, acquired intangible assets of $43.6 million with a weighted average estimated useful life of

10.0

years, and $0.6 million of net tangible assets. The goodwill is attributable to cost synergies, assembled workforce and anticipated incremental revenue streams. The fair values of the tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The results of Quantifi have been included in Teradyne’s Product Test segment from the date of acquisition. The total purchase price was allocated as follows:

	Purchase Price Allocation
	(in thousands)
Goodwill	$	83,068
Intangible Assets		43,600
Tangible assets acquired and liabilities assumed:
Current assets		6,148
Long-term deferred tax assets		6,271
Other non-current assets		2,516
Accounts payable and current liabilities		(1,609	)
Long-term deferred tax liabilities		(12,208	)
Other long-term liabilities		(548	)
Total purchase price	$	127,238

Teradyne estimated the fair value of intangible assets using the income and cost approaches. The fair value of Developed technology was estimated using the Multi-Period Excess Earnings Method. Acquired intangible assets are amortized on a straight-line basis over their estimated useful lives. Components of these intangible assets and their estimated useful lives at the acquisition date are as follows:

	Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	38,600		10.0
Trademarks and tradenames		4,400		10.0
Customer relationships		600		8.0
Total Intangible Assets	$	43,600		10.0

Teradyne has not separately disclosed Quantifi's standalone contribution to total company revenue or income from operations before income taxes or pro forma financial information because the impact of the acquisition on the condensed consolidated financial statements is not material.

Automated Test Equipment Technology

On January 31, 2025, Teradyne acquired from Infineon Technologies AG (“Infineon”) its automated test equipment technology and associated development team (“AET”) based in Regensburg, Germany for a total purchase price of 17.6 million Euros, equivalent to $18.3 million, subject to customary adjustments. AET adds resources and expertise to Teradyne and strengthens the relationship between Teradyne and Infineon. The AET acquisition was accounted for as a business combination and, accordingly, the results have been included in Teradyne’s Semiconductor Test segment from the date of acquisition. As of the acquisition date, Teradyne’s purchase price allocation was goodwill of $1.3 million for expected synergies from combining operations, acquired intangible assets of $6.4 million, consisting of developed technology and customer relationships, with a weighted average estimated useful life of

4.6

years, and $10.7 million of net tangible assets, including $11.7 million of inventory. The fair values of the tangible and identifiable

intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The acquisition was not material to Teradyne’s condensed consolidated financial statements.

E. REVENUE

Disaggregation of Revenue

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

		Semiconductor Test						Robotics		Product Test		Total
		System <br>on-a-Chip		Memory		IST
	(in thousands)
For the Three Months Ended March 29, 2026
Timing of Revenue Recognition
Point in Time		$	808,102	$	193,723	$	18,766	$	88,760	$	61,915	$	1,171,266
Over Time			73,705		8,727		7,778		2,498		18,520		111,228
Total		$	881,807	$	202,450	$	26,544	$	91,258	$	80,435	$	1,282,494
Geographical Market
Asia Pacific		$	815,400	$	195,058	$	24,593	$	16,945	$	24,688	$	1,076,684
Americas			17,045		6,839		1,951		40,523		47,524		113,882
Europe, Middle East and Africa			49,362		553		—		33,790		8,223		91,928
Total		$	881,807	$	202,450	$	26,544	$	91,258	$	80,435	$	1,282,494
For the Three Months Ended March 30, 2025
Timing of Revenue Recognition
Point in Time		$	337,691	$	101,662	$	22,892	$	67,146	$	56,559	$	585,950
Over Time			68,700		7,745		3,814		1,841		17,630		99,730
Total		$	406,391	$	109,407	$	26,706	$	68,987	$	74,189	$	685,680
Geographical Market
Asia Pacific		$	358,103	$	107,681	$	26,016	$	15,062	$	25,546	$	532,408
Americas			35,052		917		690		32,471		40,785		109,915
Europe, Middle East and Africa			13,236		809		—		21,454		7,858		43,357
Total		$	406,391	$	109,407	$	26,706	$	68,987	$	74,189	$	685,680

Contract Balances

During the three months ended March 29, 2026, and March 30, 2025, Teradyne recognized $68.5 million and $25.3 million, respectively, that was included within the deferred revenue and customer advances balances at the beginning of the period. This revenue primarily relates to undelivered hardware, extended warranties, training, application support, and post contract support. Each of these represents a distinct performance obligation. As of March 29, 2026, Teradyne had $117.4 million of unsatisfied performance obligations with an original duration of greater than one year, of which 50% is expected to be recognized as revenue within the next 12 months.

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	March 29,<br>2026		December 31,<br>2025
	(in thousands)
Maintenance, service and training	$	58,118	$	62,337
Customer advances, undelivered elements and other		130,369		85,762
Extended warranty		67,011		55,913
Total deferred revenue and customer advances	$	255,498	$	204,012

F. EQUITY METHOD INVESTMENT

On May 27, 2024, Teradyne paid 483.1 million Euros, equivalent to $524.1 million, to purchase a combination of previously issued and outstanding shares and shares newly issued by Technoprobe, S.p.A. (“Technoprobe”). The shares purchased represent 10% of the issued and outstanding shares of Technoprobe. Teradyne also received a board seat as part of the purchase. Teradyne accounts for this investment using the equity method as a result of being able to exercise significant influence over the operating and financial decisions of Technoprobe.

The carrying value of this equity method investment as of March 29, 2026 and December 31, 2025, was $522.6 million and $537.1 million, respectively, in the condensed consolidated balance sheets. For the three months ended March 29, 2026, Teradyne

recorded a $4.6 million loss related to equity in net earnings of affiliate and a $9.9 million loss in other comprehensive income (loss) related to investment. For the three months ended March 30, 2025, Teradyne recorded a loss of $5.6 million of equity in net earnings of affiliate and a gain of $20.7 million in other comprehensive income (loss) related to this investment.

Based on the quoted closing price of Technoprobe stock as of March 29, 2026 and March 30, 2025, the fair value of the publicly traded investment was $1,068.2 million and $411.5 million, respectively.

Teradyne’s equity method basis difference was calculated as the difference between the investment and the amount of underlying equity in net assets acquired. The basis differences, net of tax, will be amortized over the estimated useful lives.

Teradyne made an accounting policy election to report its share of Technoprobe’s results on a 3-month lag, which is applied consistently from period to period. Teradyne records its share of Technoprobe’s net income or loss and the amortization of equity method basis difference, as ‘Equity in net earnings of affiliate’ in the condensed consolidated statements of operations. Teradyne includes its share of Technoprobe’s other comprehensive income and a cumulative translation adjustment in the condensed consolidated statements of comprehensive income.

G. INVENTORIES

Inventories, net consisted of the following at March 29, 2026, and December 31, 2025:

	March 29,<br>2026		December 31,<br>2025
	(in thousands)
Raw material	$	261,969	$	267,566
Work-in-process		56,012		47,876
Finished goods		44,776		64,110
Total inventories, net	$	362,757	$	379,552

Inventory reserves at March 29, 2026, and December 31, 2025, were $155.5 million and $151.8 million, respectively.

H. FINANCIAL INSTRUMENTS

Cash Equivalents

Teradyne considers all highly liquid investments with original maturities of three months or less at the date of acquisition to be cash equivalents.

Marketable Securities

Teradyne’s equity and debt mutual funds are classified as Level 1 and available-for-sale debt securities are classified as Level 2. The vast majority of Level 2 securities are fixed income securities priced by second party pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available, use other observable inputs like market transactions involving identical or comparable securities.

During the three months ended March 29, 2026, and March 30, 2025, there were no transfers in or out of Level 1, Level 2, or Level 3 financial instruments.

	For the Three Months<br> Ended
	March 29,<br>2026		March 30,<br>2025
	(in millions)
Realized gains and losses included in ‘Other (income) expense, net’ in the condensed consolidated statement of operations
Realized gains	$	0.7	$	0.7
Realized losses		0.1		1.2
Unrealized gains and losses on equity securities included in ‘Other (income) expense, net’ in the condensed consolidated statement of operations
Unrealized gains on equity securities	$	—	$	0.2
Unrealized losses on equity securities		4.0		3.1

Unrealized gains and losses on available-for-sale debt securities are included in ‘Accumulated other comprehensive income (loss)’ in the condensed consolidated balance sheet.

The cost of securities sold is based on average cost.

The following tables set forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of March 29, 2026, and December 31, 2025.

	March 29, 2026
	Quoted Prices<br>in Active<br>Markets for<br>Identical<br>Instruments<br>(Level 1)		Significant<br>Other<br>Observable<br>Inputs<br>(Level 2)		Significant<br>Unobservable<br>Inputs<br>(Level 3)		Total
	(in thousands)
Assets
Cash	$	193,259	$	—	$	—	$	193,259
Cash equivalents		47,762		923		—		48,685
Available-for-sale securities:
Corporate debt securities		—		57,288		—		57,288
U.S. Treasury securities		—		12,627		—		12,627
Debt mutual funds		12,045		—		—		12,045
Non-U.S. government securities		—		9,731		—		9,731
Certificates of deposit and time deposits		—		1,329		—		1,329
Equity securities:
Mutual funds		59,007		—		—		59,007
	$	312,073	$	81,898	$	—	$	393,971
Derivative assets		—		1,145		—		1,145
Total	$	312,073	$	83,043	$	—	$	395,116
Liabilities
Derivative liabilities		—		2,994		—		2,994
Total	$	—	$	2,994	$	—	$	2,994
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	241,021	$	923	$	—	$	241,944
Long-term marketable securities		71,052		77,322		—		148,374
Marketable securities		—		3,653		—		3,653
Prepayments		—		1,145		—		1,145
Total	$	312,073	$	83,043	$	—	$	395,116
Liabilities
Other current liabilities	$	—	$	2,994	$	—	$	2,994
Total	$	—	$	2,994	$	—	$	2,994
	December 31, 2025
---	---	---	---	---	---	---	---	---
	Quoted Prices<br>in Active<br>Markets for<br>Identical<br>Instruments<br>(Level 1)		Significant<br>Other<br>Observable<br>Inputs<br>(Level 2)		Significant<br>Unobservable<br>Inputs<br>(Level 3)		Total
	(in thousands)
Assets
Cash	$	214,712	$	—	$	—	$	214,712
Cash equivalents		78,068		971		—		79,039
Available-for-sale securities:
U.S. Treasury securities		—		44,143		—		44,143
Corporate debt securities		—		36,384		—		36,384
Certificates of deposit and time deposits		—		1,354		—		1,354
Debt mutual funds		14,331		—		—		14,331
Non-U.S. government securities		—		924		—		924
Equity securities:
Mutual Funds		57,367		—		—		57,367
	$	364,478	$	83,776	$	—	$	448,254
Derivative assets		—		1,175		—		1,175
Total	$	364,478	$	84,951	$	—	$	449,429
Liabilities
Derivative liabilities		—		928		—		928
Total	$	—	$	928	$	—	$	928
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	292,780	$	971	$	—	$	293,751
Long-term marketable securities		71,698		54,558		—		126,256
Marketable securities		—		28,247		—		28,247
Prepayments		—		1,175		—		1,175
Total	$	364,478	$	84,951	$	—	$	449,429
Liabilities
Other current liabilities	$	—	$	928	$	—	$	928
Total	$	—	$	928	$	—	$	928

The carrying amounts and fair values of Teradyne’s financial instruments at March 29, 2026, and December 31, 2025, were as follows:

	March 29, 2026				December 31, 2025
	Carrying Value		Fair Value		Carrying Value			Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	241,944	$	241,944	$	293,751		$	293,751
Marketable securities		152,027		152,027		154,503			154,503
Derivative assets		1,145		1,145		1,175			1,175
Liabilities								
Derivative liabilities		2,994		2,994		928			928

The fair values of accounts receivable, net and accounts payable approximate the carrying value due to the short-term nature of these instruments.

The following table summarizes the composition of available-for-sale marketable securities at March 29, 2026:

	March 29, 2026
	Available-for-Sale
	Cost		Unrealized<br>Gain		Unrealized<br>(Loss)			Fair <br>Market<br>Value		Fair Market<br>Value of<br>Investments<br>with Unrealized<br>Losses
	(in thousands)
Corporate debt securities	$	62,249	$	110	$	(5,071	)	$	57,288	$	49,277
U.S. Treasury securities		17,472		11		(4,856	)		12,627		12,112
Debt mutual funds		12,254		—		(209	)		12,045		2,929
Non-U.S. government securities		10,005		—		(274	)		9,731		8,830
Certificates of deposit and time deposits		1,329		—		—			1,329		—
	$	103,309	$	121	$	(10,410	)	$	93,020	$	73,148

Reported as follows:

	Cost		Unrealized<br>Gain		Unrealized<br>(Loss)			Fair <br>Market<br>Value		Fair Market<br>Value of<br>Investments<br>with Unrealized<br>Losses
	(in thousands)
Marketable securities	$	3,656	$	1	$	(4	)	$	3,653	$	1,953
Long-term marketable securities		99,653		120		(10,406	)		89,367		71,195
	$	103,309	$	121	$	(10,410	)	$	93,020	$	73,148

The following table summarizes the composition of available-for-sale marketable securities at December 31, 2025:

	December 31, 2025
	Available-for-Sale
	Cost		Unrealized<br>Gain		Unrealized<br>(Loss)			Fair <br>Market<br>Value		Fair Market<br>Value of<br>Investments<br>with Unrealized<br>Losses
	(in thousands)
U.S. Treasury securities	$	48,723	$	90	$	(4,670	)	$	44,143	$	13,891
Corporate debt securities		40,090		293		(3,999	)		36,384		22,941
Debt mutual funds		14,508		—		(177	)		14,331		3,020
Certificates of deposit and time deposits		1,354		—		—			1,354		—
Non-U.S. government securities		924		—		—			924		—
	$	105,599	$	383	$	(8,846	)	$	97,136	$	39,852

Reported as follows:

	Cost		Unrealized<br>Gain		Unrealized<br>(Loss)			Fair <br>Market<br>Value		Fair Market<br>Value of<br>Investments<br>with Unrealized<br>Losses
	(in thousands)
Marketable securities	$	28,213	$	41	$	(7	)	$	28,247	$	2,293
Long-term marketable securities		77,386		342		(8,839	)		68,889		37,559
	$	105,599	$	383	$	(8,846	)	$	97,136	$	39,852

As of March 29, 2026, the fair market value of investments with unrealized losses less than one year and greater than one year totaled $39.7 million and $33.5 million, respectively. As of December 31, 2025, the fair market value of investments with unrealized losses for less than one year and greater than one year totaled $1.1 million and $38.8 million, respectively.

Teradyne reviews its investments to identify and evaluate investments that have an indication of possible impairment. Based on this review, Teradyne determined that the unrealized losses related to these investments at March 29, 2026, and December 31, 2025, were not other than temporary.

The contractual maturities of investments in available-for-sale securities held at March 29, 2026, were as follows:

	March 29, 2026
	Cost		Fair Market<br>Value
	(in thousands)
Due within one year	$	3,656	$	3,653
Due after 1 year through 5 years		10,079		9,871
Due after 5 years through 10 years		13,104		12,974
Due after 10 years		64,221		54,482
Total	$	91,060	$	80,980

Contractual maturities of investments in available-for-sale securities held at March 29, 2026, exclude debt mutual funds with a fair market value of $12.0 million as they do not have a contractual maturity date.

Derivatives

Teradyne conducts business in various foreign countries, with certain transactions denominated in local currencies. As a result, Teradyne is exposed to risks relating to changes in foreign currency exchange rates. Teradyne’s foreign currency risk management objective is to minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, and changes in its cash inflows attributable to the forecasted cash flows from certain foreign currency denominated revenues.

To minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings and is used to offset the change in value of monetary assets and liabilities denominated in foreign currencies.

Teradyne also enters into foreign currency forward and option contracts designated as cash flow hedges to hedge the risk of changes in its cash inflows attributable to changes in foreign currency exchange rates. The cash flow hedges have maturities of less than six months and mature in the period of revenue recognition for certain products and services in backlog and forecasted to be recognized in a future period. Teradyne evaluates cash flow hedges for effectiveness at inception based on the critical terms match method. The hedges are not expected to incur any ineffectiveness however a quarterly qualitative assessment of effectiveness is done to determine if the critical terms match method remains appropriate to use. The change in fair value of the contracts is recorded in accumulated other comprehensive income (loss) and reclassified to earnings at maturity date.

Teradyne does not use derivative financial instruments for speculative purposes.

At March 29, 2026, and December 31, 2025, Teradyne had the following contracts to buy and sell non-U.S. currencies for U.S. dollars and other non-U.S. currencies with the following notional amounts:

	Net Notional Value
	March 29,<br>2026		December 31,<br>2025
	(in millions)
Currency Hedged (Buy/Sell)
U.S. dollar/Taiwan dollar	$	28.6	$	27.0
U.S. dollar/Japanese yen		14.2		16.9
U.S. dollar/Euro		13.4		—
U.S. dollar/Korean won		4.4		7.7
U.S. dollar/British pound sterling		1.5		1.9
Singapore dollar/U.S. dollar		89.8		62.6
Danish krone/U.S. dollar		12.0		—
Danish krone/Chinese yuan		6.5		—
Philippine peso/U.S. dollar		1.7		1.8
Chinese yuan/U.S. dollar		0.6		0.7
Euro/U.S. dollar		—		20.4
Total	$	172.7	$	139.0

The change in the fair value of the outstanding contracts resulted in a net loss of $1.8 million and a net gain of $0.2 million at March 29, 2026, and December 31, 2025, respectively.

Unrealized gains and losses on foreign currency forward contracts and foreign currency remeasurement gains and losses on monetary assets and liabilities are included in ‘Other (income) expense, net’ in the condensed consolidated statement of operations.

Unrealized gains and losses on foreign currency cash flow hedge contracts are included in accumulated other comprehensive income (loss). At maturity, the gains or losses associated with cash flow hedge contracts are recorded to revenue.

The following table summarizes the fair value of derivative instruments as of March 29, 2026, and December 31, 2025:

	Balance Sheet Location	March 29,<br>2026			December 31,<br>2025
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts	Other current assets		1,145			1,175
Foreign exchange forward contracts	Other current liabilities		(2,994	)		(928	)
Total derivatives		$	(1,849	)	$	247

The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended March 29, 2026, and March 30, 2025:

		For the Three Months<br> Ended
	Location of (Gains) Losses<br>Recognized in Statement<br>of Operations	March 29,<br>2026		March 30,<br>2025
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts (1)	Other (income) expense, net	$	1,086	$	(166	)
Derivatives designated as hedging instruments:
Foreign exchange forward and option contracts	Revenue		—		(747	)
Total Derivatives		$	1,086	$	(913	)

• The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities denominated in foreign currencies. For the three months ended March 29, 2026 and March 30, 2025, net losses from

• remeasurement of monetary assets and liabilities denominated in foreign currencies were $1.4 million and $2.2 million, respectively. See Note I: “Debt” regarding derivatives related to the convertible senior notes.

I. DEBT

Revolving Credit Facility

On May 1, 2020, Teradyne entered into a credit agreement (the “Credit Agreement”) with Truist Bank, as administrative agent and collateral agent, and the lenders party thereto. The Credit Agreement provides for a three-year, senior secured revolving credit facility of $400.0 million (the “Credit Facility”). On December 10, 2021, the Credit Agreement was amended to extend the maturity date of the Credit Facility to December 10, 2026. On October 5, 2022, the Credit Agreement was amended to increase the amount of the Credit Facility to $750.0 million from $400.0 million. On November 7, 2023, the Credit Agreement was amended to allow for the purchase of the shares of Technoprobe. The Credit Agreement provides that, subject to customary conditions, Teradyne may seek to obtain from existing or new lenders the available incremental amount under the Credit Facility, not to exceed the greater of $200.0 million or 15% of consolidated EBIDTA. The interest rate applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.00% to 0.75% per annum or SOFR plus a margin ranging from 1.10% to 1.85% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.15% to 0.25% per annum, based on the then applicable consolidated leverage ratio. Teradyne is not required to repay any loans under the Credit Facility prior to maturity, subject to certain customary exceptions. Teradyne is permitted to prepay all or any portion of the loans under the Credit Facility prior to maturity without premium or penalty, other than customary SOFR breakage costs. The Credit Agreement contains customary events of default, representations, warranties and affirmative and negative covenants that, among other things, limit Teradyne’s ability to sell assets, grant liens on assets, incur other secured indebtedness and make certain investments and restricted payments, all subject to exceptions set forth in the Credit Agreement. The Credit Agreement also requires Teradyne to satisfy two financial ratios measured as of the end of each fiscal quarter: a consolidated leverage ratio and an interest coverage ratio. The Credit Facility is guaranteed by certain of Teradyne’s domestic subsidiaries and collateralized by assets of Teradyne and such subsidiaries, including a pledge of 65% of the capital stock of certain foreign subsidiaries.

As of March 29, 2026, Teradyne did not have an outstanding balance under the Credit Agreement. As of December 31, 2025, Teradyne had an outstanding balance of $200 million under the Credit Agreement. The weighted-average interest rate on the outstanding borrowings as of December 31, 2025 was 4.86%. During the three months ended March 29, 2026, Teradyne paid $2.9 million in interest related to its debt from the Credit Facility. As of March 29, 2026, Teradyne was in compliance with all covenants under the Credit Agreement. Teradyne intends to extend the Credit Facility later in 2026.

J. PREPAYMENTS

Prepayments consist of the following:

	March 29,<br>2026		December 31,<br>2025
	(in thousands)
Contract manufacturer and supplier prepayments	$	381,319	$	364,170
Prepaid maintenance and other services		19,884		16,662
Prepaid taxes		11,774		9,861
Other prepayments		25,600		36,871
Total prepayments	$	438,577	$	427,564

K. PRODUCT WARRANTY

Teradyne generally provides a one-year warranty on its products, commencing upon installation, acceptance or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
	(in thousands)
Balance at beginning of period	$	19,150		$	12,962
Accruals for warranties issued during the period		8,750			5,946
Accruals related to pre-existing warranties		(304	)		(552	)
Settlements made during the period		(4,216	)		(5,280	)
Balance at end of period	$	23,380		$	13,076

When Teradyne receives payment for extended warranties, beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
	(in thousands)
Balance at beginning of period	$	55,913		$	41,624
Deferral of new extended warranty revenue		17,778			7,938
Recognition of extended warranty deferred revenue		(6,680	)		(5,250	)
Balance at end of period	$	67,011		$	44,312

L. STOCK-BASED COMPENSATION

Under Teradyne’s stock compensation plans, Teradyne grants time-based restricted stock units, performance-based restricted stock units and stock options, and employees are eligible to purchase Teradyne’s common stock through its Employee Stock Purchase Plan (“ESPP”).

Service-based restricted stock unit awards granted to employees vest in equal annual installments over four years. Restricted stock unit awards granted to non-employee directors vest after a one-year period, with 100% of the award vesting on the earlier of (a) the first anniversary of the grant date or (b) the date of the following year’s Annual Meeting of Shareholders. Teradyne expenses the cost of the restricted stock unit awards subject to time-based vesting, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which the restrictions lapse.

Performance-based restricted stock units (“PRSUs”) granted to Teradyne’s executive officers may have a performance metric based on relative total shareholder return (“TSR”). For PRSUs granted beginning in 2026, Teradyne’s three‑year TSR performance will be measured against all other companies within the S&P 500. PRSUs granted prior to 2026, including those that remain outstanding and unvested, will continue to be measured against the New York Stock Exchange (“NYSE”) Composite Index for their full three‑year performance periods. The final number of TSR PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The TSR PRSUs will vest upon the three-year anniversary of the grant date. The TSR PRSUs are valued using a Monte Carlo simulation model. The number of units expected to be earned, based upon the achievement of the TSR market condition, is factored into the grant date Monte Carlo valuation. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant to the date described in the retirement provisions below.

PRSUs granted to Teradyne’s executive officers may also have a performance metric based on three-year cumulative non-GAAP profit before interest and tax (“PBIT”) as a percent of Teradyne’s revenue. Non-GAAP PBIT is a financial measure equal to GAAP income from operations less restructuring and other, net; amortization of acquired intangible assets; acquisition and divestiture related charges or credits; pension actuarial gains and losses; non-cash convertible debt interest expense; and other non-recurring gains

and charges such as ERP implementation related costs and equity modification charges. The final number of PBIT PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The PBIT PRSUs will vest upon the three-year anniversary of the grant date. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant date to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the year following the grant. Compensation expense is recognized based on the number of units that are earned based upon the three-year Teradyne PBIT as a percent of Teradyne’s revenue, provided the executive officer remains an employee at the end of the three-year period subject to the retirement and termination eligibility provisions noted below.

If a PRSU recipient’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age 60 and at least 10 years of service, then all or a portion of the recipient’s PRSUs (based on the actual performance percentage achieved on the determination date) will vest on the date the performance percentage is determined. Except as set forth in the preceding sentence, no PRSUs will vest if the executive officer is no longer an employee at the end of the three-year period. Stock options to purchase Teradyne’s common stock at 100% of the fair market value on the grant date vest in equal annual installments over four years from the grant date and have a maximum term of seven years.

On January 22, 2024, the Board enacted the Executive Retirement Policy for Restricted Stock Unit and Option Vesting (the “Retirement Policy”). Under the Retirement Policy, an executive officer that is over the age of 65 and has 10 or more years of service as of the effective date of his or her retirement will be eligible for continued vesting of his or her unvested time-based restricted stock units and stock options granted prior to his or her retirement date.

During the three months ended March 29, 2026, and March 30, 2025, Teradyne granted 0.2 million and 0.5 million of service-based restricted stock unit awards to employees at a weighted average grant date fair value of $267.08 and $114.51, respectively.

During the three months ended March 29, 2026, and March 30, 2025, Teradyne granted 0.1 million and 0.1 million of PBIT PRSUs with a weighted average grant date fair value of $267.63 and $114.47, respectively.

During the three months ended March 29, 2026, and March 30, 2025, Teradyne granted 0.1 million and 0.1 million of TSR PRSUs, with a weighted average grant date fair value of $440.94 and $120.80, respectively. The grant date fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
Risk-free interest rate		3.6	%		4.2	%
Teradyne volatility-historical		47.5	%		41.7	%
S&P 500 Constituents volatility-historical		27.6	%
NYSE Composite Index volatility-historical					14.9	%
Dividend yield		0.2	%		0.4	%

Expected volatility was based on the historical volatility of Teradyne’s stock and the companies within the S&P 500 for shares granted in 2026 and the NYSE Composite Index for shares granted prior to 2026 over the most recent three-year period. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of the applicable grant. Dividend yield was based upon an estimated annual dividend amount of $0.52 per share divided by Teradyne’s stock price on the grant dates, which have a weighted average grant date stock price of $269.07 for the 2026 grants, and an estimated annual dividend amount of $0.48 per share divided by Teradyne’s stock price on the grant date of $115.79 for the 2025 grant.

During the three months ended March 29, 2026, and March 30, 2025, Teradyne granted 0.1 million and 0.1 million of service-based stock options to executive officers at a weighted average grant date fair value of $101.61 and $44.65, respectively.

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
Expected life (years)		3.5			4.0
Risk-free interest rate		3.7	%		4.3	%
Volatility-historical		46.9	%		44.0	%
Dividend yield		0.2	%		0.4	%

Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.52 per share divided by Teradyne’s stock price on the grant date, which have a weighted average grant date stock price of $269.07 for the 2026 grant and an estimated annual dividend amount of $0.48 per share divided by Teradyne’s stock price on the grant date of $115.79 for the 2025 grant.

M. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Changes in accumulated other comprehensive income (loss), which are presented net of tax, consist of the following:

			Unrealized<br>(Losses) Gains on<br>Marketable<br>Securities			Unrealized (Losses) Gains on Cash Flow Hedges			Retirement<br>Plans Prior<br>Service<br>Credit			Total
Three Months Ended March 29, 2026
Balance at December 31, 2025, net of tax of 0, (1,892),   0, (1,136), respectively	47,328		$	(6,571	)	$	—		$	1,138		$	41,895
Other comprehensive (loss) gain before reclassifications,   net of tax of 0, (244), 0, 0, respectively	(19,933	)		(1,540	)		—			—			(21,473	)
Amounts reclassified from accumulated other comprehensive    income (loss), net of tax of 0, (4), 0, 0, respectively	—			(42	)		—			(1	)		(43	)
Net current period other comprehensive loss, net of tax   of 0, (248), 0, 0, respectively	(19,933	)		(1,582	)		—			(1	)		(21,516	)
Balance at March 29, 2026, net of tax of 0, (2,140),   0, (1,136), respectively	27,395		$	(8,153	)	$	—		$	1,137		$	20,379
Three Months Ended March 30, 2025
Balance at December 31, 2024, net of tax of 0, (2,174),   209, (1,134), respectively	(75,289	)	$	(7,807	)	$	731		$	1,145		$	(81,220	)
Other comprehensive (loss) gain before reclassifications,   net of tax of 0, 132, (58), 0, respectively	39,319			620			(202	)		—			39,737
Amounts reclassified from accumulated other comprehensive    income (loss), net of tax of 0, 21, (166), 0, respectively	—			75			(582	)		(2	)		(509	)
Net current period other comprehensive loss, net of tax   of 0, 153, (224), 0, respectively	39,319			695			(784	)		(2	)		39,228
Balance at March 30, 2025, net of tax of 0, (2,021),   (15), (1,134), respectively	(35,970	)	$	(7,112	)	$	(53	)	$	1,143		$	(41,992	)

All values are in US Dollars.

Reclassifications out of accumulated other comprehensive income (loss) to the statement of operations for the three months ended March 29, 2026, and March 30, 2025, were as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components					Affected Line Item<br>in the Statements<br>of Operations
		March 30,<br>2025
Available-for-sale marketable securities:
Unrealized (losses) gains, net of tax of 4, (21), respectively	42	$	(75	)	Other (income) expense, net
Cash flow hedges:
Unrealized (losses) gains, net of tax of 0, 166, respectively	—		582		Revenue
Defined benefit pension and postretirement plans:
Amortization of prior service credit, net of tax of 0, 0, respectively	1		2		(a)
Total reclassifications, net of tax of 4, 145, respectively	43	$	509		Net income

All values are in US Dollars.

• The amortization of prior service credit is included in the computation of net periodic postretirement benefit cost. See Note Q: “Retirement Plans.”

N. GOODWILL AND ACQUIRED INTANGIBLE ASSETS

Goodwill

Goodwill is considered impaired when the carrying value of a reporting unit exceeds its estimated fair value. Teradyne performs its annual goodwill impairment test as required under the provisions of Accounting Standards Codification (“ASC”) 350-10, “Intangibles—Goodwill and Other” on December 31 of each fiscal year unless there are negative qualitative factors relating to macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, and other relevant events and changes during an interim period. The presence of such factors could, under certain circumstances, be a triggering event that causes us to perform a goodwill impairment test. The Company did not identify a triggering event and no impairment test of goodwill was required.

The changes in the carrying amount of goodwill by reportable segments for the three months ended March 29, 2026, were as follows:

	Robotics			Semiconductor <br>Test			Product<br>Test			Total
	(in thousands)
Balance at December 31, 2025
Goodwill	$	416,401		$	263,598		$	603,586		$	1,283,585
Accumulated impairment losses		—			(260,540	)		(502,026	)		(762,566	)
Total Goodwill		416,401			3,058			101,560			521,019
Foreign currency translation adjustment		(6,834	)		(10	)		—			(6,844	)
Balance at March 29, 2026
Goodwill	$	409,567		$	263,588		$	603,586		$	1,276,741
Accumulated impairment losses		—			(260,540	)		(502,026	)		(762,566	)
Total Goodwill	$	409,567		$	3,048		$	101,560		$	514,175

Intangible Assets

Teradyne reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. For the three months ended March 29, 2026, the Company did not record any intangible asset impairment.

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross<br>Carrying<br>Amount (1)		Accumulated<br>Amortization (1)			Foreign <br>Currency <br>Translation <br>Adjustment			Net<br>Carrying<br>Amount
	(in thousands)
Balance at March 29, 2026
Developed technology	$	225,435	$	(188,330	)	$	60		$	37,165
Customer relationships		49,120		(44,942	)		204			4,382
Tradenames and trademarks		40,487		(31,955	)		(1,100	)		7,432
Total intangible assets	$	315,042	$	(265,227	)	$	(836	)	$	48,979
Balance at December 31, 2025
Developed technology	$	250,025	$	(211,662	)	$	60		$	38,423
Customer relationships		56,480		(51,953	)		204			4,731
Tradenames and trademarks		40,487		(31,339	)		(1,031	)		8,117
Total intangible assets	$	346,992	$	(294,954	)	$	(767	)	$	51,271

• In the three months ended March 29,

2026

, $32.0 million of amortizable intangible assets became fully amortized and have been eliminated from the gross carrying amount and accumulated amortization.

Aggregate intangible asset amortization expense was $2.2 million and $4.6 million, respectively, for the three months ended March 29, 2026, and March 30, 2025.

Estimated intangible asset amortization expense for each of the five succeeding fiscal years and thereafter is as follows:

Year	Amortization<br>Expense
	(in thousands)
2026	$	6,005
2027		6,955
2028		6,874
2029		5,536
2030		4,436
Thereafter		19,173

O. NET INCOME PER COMMON SHARE

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months<br> Ended
	March 29,<br>2026		March 30,<br>2025
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	398,908	$	98,896
Weighted average common shares-basic		156,410		161,501
Effect of dilutive potential common shares:
Restricted stock units		1,148		444
Stock options		74		5
Employee stock purchase plan		4		46
Dilutive potential common shares		1,226		495
Weighted average common shares-diluted		157,636		161,996
Net income per common share-basic	$	2.55	$	0.61
Net income per common share-diluted	$	2.53	$	0.61

The computation of diluted net income per common share for the three months ended March 29, 2026, and March 30, 2025, excludes the effect of the potential vesting of less than 0.1 million, and 0.5 million, respectively, of restricted stock units because the effect would have been anti-dilutive.

P. RESTRUCTURING AND OTHER

During the three months ended March 29, 2026, Teradyne recorded $3.4 million of restructuring and other charges, $1.7 million of which were acquisition and divestiture related expenses. During the three months ended March 29, 2026, Teradyne made $4.3 million of severance payments related to the 2025 Robotics restructurings.

During the three months ended March 30, 2025, Teradyne consolidated its Robotics go-to-market and other central functions to better serve its customers. As a result, Teradyne recorded $11.4 million of employee severance charges, $9.2 million of which is related to the Robotics restructuring which impacted approximately 150 employees. During the three months ended March 30, 2025, Teradyne made $4.2 million of Robotics severance payments. Additionally, Teradyne recorded $2.0 million of acquisition and divestiture related costs and $1.1 million related to asset impairment.

Q. RETIREMENT PLANS

ASC 715, “Compensation—Retirement Benefits,” requires an employer with defined benefit plans or other postretirement benefit plans to recognize an asset or a liability on its balance sheet for the overfunded or underfunded status of the plans as defined by ASC 715. The pension asset or liability represents a difference between the fair value of the pension plan’s assets and the projected benefit obligation at December 31. Teradyne uses a December 31 measurement date for all its plans.

Defined Benefit Pension Plans

Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets of the U.S. qualified pension plan consist primarily of fixed income and equity securities. In addition, Teradyne has an unfunded supplemental executive defined benefit plan in the United States to provide retirement benefits in excess of levels allowed by the Employment Retirement Income Security Act (“ERISA”) and the Internal Revenue Code (the “IRC”), as well as unfunded qualified foreign plans.

In the three months ended March 29, 2026, and March 30, 2025, Teradyne contributed $0.9 million and $0.8 million, respectively, to the U.S. supplemental executive defined benefit pension plan, and $0.3 million and $0.3 million, respectively, to certain qualified pension plans for non-U.S. subsidiaries.

For the three months ended March 29, 2026, and March 30, 2025, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	March 29, 2026						March 30, 2025
	United<br>States			Foreign			United<br>States			Foreign
	(in thousands)
Service cost	$	143		$	299		$	214		$	124
Interest cost		1,359			349			1,709			262
Expected return on plan assets		(975	)		(54	)		(1,317	)		(22	)
Total net periodic pension cost	$	527		$	594		$	606		$	364

Postretirement Benefit Plan

In addition to receiving pension benefits, Teradyne employees in the United States who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees could become eligible for these benefits and the existing benefit obligation relates primarily to those employees. During the three months ended March 30, 2025, Teradyne recorded special termination benefit charges associated with a voluntary early retirement program.

For the three months ended March 29, 2026, and March 30, 2025, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
	(in thousands)
Service cost	$	7		$	10
Interest cost		68			73
Amortization of prior service credit		(1	)		(2	)
Special termination benefits		—			684
Total net periodic postretirement benefit cost	$	74		$	765

R. COMMITMENTS AND CONTINGENCIES

Purchase Commitments

As of March 29, 2026, Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments covered by the agreements aggregate to approximately $1,486.0 million, of which $1,452.6 million is for less than one year.

Legal Claims

Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations.

Guarantees and Indemnification Obligations

Teradyne provides indemnification, to the extent permitted by law, to its officers, directors, employees and agents for liabilities arising from certain events or occurrences, while the officer, director, employee, or agent, is or was serving, at Teradyne’s request in such capacity. Teradyne may enter into indemnification agreements with certain of its officers and directors. With respect to acquisitions, Teradyne provides indemnifications to or assumes indemnification obligations for the current and former directors, officers and employees of the acquired companies in accordance with the acquired companies’ by-laws and charter. As a matter of

practice, Teradyne has maintained directors’ and officers’ liability insurance coverage including coverage for directors and officers of acquired companies.

Teradyne enters into agreements in the ordinary course of business with customers, resellers, distributors, integrators and suppliers. Most of these agreements require Teradyne to defend and/or indemnify the other party against intellectual property infringement claims brought by a third party with respect to Teradyne’s products. From time to time, Teradyne also indemnifies customers and business partners for damages, losses and liabilities they may suffer or incur relating to personal injury, personal property damage, product liability, breach of confidentiality obligations and environmental claims relating to the use of Teradyne’s products and services or resulting from the acts or omissions of Teradyne, its employees, authorized agents or subcontractors. On occasion, Teradyne has also provided guarantees to customers regarding the delivery and performance of its products in addition to the warranty described below.

As a matter of ordinary course of business, Teradyne warrants that its products will substantially perform in accordance with its standard published specifications in effect at the time of delivery. Most warranties have a one-year duration commencing from installation. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based upon historical experience. When Teradyne receives revenue for extended warranties beyond the standard duration, the revenue is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. As of March 29, 2026, and December 31, 2025, Teradyne had a product warranty accrual of $23.4 million and $19.2 million, respectively, included in other accrued liabilities and revenue deferrals related to extended warranties of $67.0 million and $55.9 million, respectively, included in short and long-term deferred revenue and customer advances.

In addition, in the ordinary course of business, Teradyne provides minimum purchase guarantees to certain vendors to ensure continuity of supply against the market demand. Although some of these guarantees provide penalties for cancellations and/or modifications to the purchase commitments as the market demand decreases, most of the guarantees do not. Therefore, as the market demand decreases, Teradyne re-evaluates these guarantees and determines what charges, if any, should be recorded.

With respect to its agreements covering product, business or entity divestitures and acquisitions, Teradyne provides certain representations, warranties and covenants to purchasers and agrees to indemnify and hold such purchasers harmless against breaches of such representations, warranties and covenants. Many of the indemnification claims have a definite expiration date while some remain in force indefinitely. With respect to its acquisitions, Teradyne may, from time to time, assume the liability for certain events or occurrences that took place prior to the date of acquisition.

As a matter of ordinary course of business, Teradyne occasionally guarantees certain indebtedness obligations of its subsidiary companies, limited to the borrowings from financial institutions, purchase commitments to certain vendors and lease commitments to landlords.

Based on historical experience and information known as of March 29, 2026, and December 31, 2025, except for product warranty, Teradyne has not recorded any liabilities for these guarantees and obligations because the amount would be immaterial.

S. INCOME TAXES

The effective tax rate for the three months ended March 29, 2026, and March 30, 2025, was 13.3% and 12.2%, respectively. The increase in the effective tax rate from the three months ended March 30, 2025, to the three months ended March 29, 2026, is primarily attributable to lower benefits from tax credits, lower benefits related to U.S. taxation of international income, and higher expense related to Pillar Two. These impacts were partially offset by increased benefits from equity compensation and a projected shift in the geographic distribution of income.

On a quarterly basis, Teradyne evaluates the realizability of the deferred tax assets by jurisdiction and assesses the need for a valuation allowance. As of March 29, 2026, Teradyne believes that it will ultimately realize the deferred tax assets recorded on the condensed consolidated balance sheet. However, should Teradyne believe that it is more-likely-than-not that the deferred tax assets would not be realized, the tax provision would increase in the period in which Teradyne determined that the realizability was not likely. Teradyne considers the probability of future taxable income and historical profitability, among other factors, in assessing the realizability of the deferred tax assets.

As of both March 29, 2026, and December 31, 2025, Teradyne had $6.9 million of gross reserves for uncertain tax positions.

Teradyne recognizes interest and penalties related to income tax matters in income tax expense. As of March 29, 2026, and December 31, 2025, $0.3 million and $0.3 million, respectively, of interest and penalties were accrued for uncertain tax positions.

Expense of less than $0.1 million was recorded for each of the three months ended March 29, 2026, and March 30, 2025 for interest and penalties related to income tax items.

Teradyne qualifies for a tax holiday in Singapore by fulfilling the requirements of an agreement with the Singapore Economic Development Board under which certain headcount and spending requirements must be met. The tax savings attributable to the Singapore tax holiday for three months ended March 29, 2026 and March 30, 2025 were $8.3 million or $0.05 per diluted share, and $2.0 million or $0.01 per diluted share, respectively. In December 2025, Teradyne entered into an agreement with the Singapore Economic Development Board which extended our Singapore tax holiday under substantially similar terms to the agreement which expired on December 31, 2025. The new tax holiday is scheduled to expire on December 31, 2035.

On January 5, 2026, the Organisation for Economic Co-operation and Development (OECD/G20) Inclusive Framework released a ‘side-by-side’ arrangement that provides a safe harbor for U.S.-headquartered multinationals. The arrangement effectively recognizes the U.S. tax system as complying with the Pillar Two GloBE rules for fiscal years beginning on or after January 1, 2026. Under this arrangement, the Company expects its U.S.-parented group and foreign subsidiaries to be exempt from the Income Inclusion Rule (IIR) and the Undertaxed Profits Rule (UTPR) in foreign jurisdictions that adopt this safe harbor. As a result, we do not expect to have a material impact from top-up taxes under the IIR and UTPR. Teradyne continues to monitor the implementation of Qualified Domestic Minimum Top-up Taxes (QDMTTs) in foreign jurisdictions, which remain unaffected by the side-by-side arrangement.

On July 4, 2025, the One Big Beautiful Bill Act (OBBBA, P.L. 119-21) was enacted, introducing significant changes to U.S. federal income tax law. Key provisions include a permanent extension of 100% bonus depreciation, immediate expensing of research and experimental expenditures, and modifications to the business interest expense deduction. The OBBBA also reduces deduction rates related to foreign income and export sales income. The OBBBA is not expected to have a material impact on Teradyne’s consolidated financial statements for the year ended December 31, 2026.

T. SEGMENT INFORMATION

Teradyne has three reportable segments (Semiconductor Test, Robotics, and Product Test). As of March 29, 2026, each of Teradyne’s reportable segments represents an individual operating segment.

The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services inclusive of storage and system level test products. The Robotics segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms and autonomous mobile robots. The Product Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace test, circuit-board test, wireless test systems, and silicon photonics testing. Each reportable segment has a segment manager who is accountable to and maintains regular contact with Teradyne’s CODM to discuss operating activities, financial results, forecasts, and plans for the segment.

The CODM uses business segment income (loss) before income taxes predominantly in the annual budgeting and forecasting process. The CODM also uses this measure when making decisions about the allocation of operating and capital resources to each segment. The accounting policies of the business segments are the same as those described in Teradyne’s Annual Report on Form 10-K in Note B: “Accounting Policies.”

Segment information for the three months ended March 29, 2026, and March 30, 2025, is as follows:

	Semiconductor<br>Test		Robotics			Product Test		Total Reportable Segments		Corporate<br>and Eliminations			Consolidated
	(in thousands)
Three months ended March 29, 2026
Revenues	$	1,110,801	$	91,258		$	80,435	$	1,282,494	$	—		$	1,282,494
Less:
Cost of revenues		413,855		45,185			34,564		493,604		—			493,604
Engineering and development		93,296		12,262			14,339		119,897		—			119,897
Selling and marketing		63,831		21,188			13,113		98,132		—			98,132
General and administrative		26,839		8,758			6,486		42,083		—			42,083
Other segment items (1)(2)		44,928		4,829			7,226		56,983		6,119			63,102
Income (loss) before taxes (2)		468,052		(964	)		4,707		471,795		(6,119	)		465,676
Total assets (3)		2,087,713		692,054			356,238		3,136,005		1,297,822			4,433,827
Property additions		58,493		2,831			3,409		64,733		—			64,733
Depreciation and amortization expense		24,689		4,327			3,565		32,581		74			32,655
Three months ended March 30, 2025
Revenues	$	542,504	$	68,987		$	74,189	$	685,680	$	—		$	685,680
Less:
Cost of revenues		202,747		32,292			30,035		265,074		—			265,074
Engineering and development		80,211		15,855			11,539		107,605		—			107,605
Selling and marketing		51,697		24,514			11,737		87,948		—			87,948
General and administrative		26,552		9,865			4,969		41,386		—			41,386
Other segment items (1)(2)		25,495		23,638			7,273		56,406		8,237			64,643
Income (loss) before taxes (2)		155,802		(37,177	)		8,636		127,261		(8,237	)		119,024
Total assets (3)		1,396,660		742,621			205,840		2,345,121		1,360,716			3,705,837
Property additions		59,732		2,676			2,778		65,186		—			65,186
Depreciation and amortization expense		22,865		5,941			1,506		30,312		(10	)		30,302

• For each reportable segment, the other segment items category includes equity and variable compensation, acquired intangible assets amortization, inventory step-up, and restructuring and other charges.
• Included in Corporate and Eliminations are interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, severance charges, pension and postretirement plan actuarial gains (losses), acquisition and divestiture related expenses, and ERP implementation related costs.
• Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.

U. SHAREHOLDERS’ EQUITY

Stock Repurchase Program

In January 2023, Teradyne’s Board of Directors cancelled its January 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. As of January 1, 2023, share repurchases in excess of issuances are subject to a 1% excise tax, which is included as part of the cost basis of the shares acquired.

During the three months ended March 29, 2026, Teradyne repurchased less than 0.1 million shares of common stock for a total cost of $5.5 million at an average price of $229.00 per share. The cumulative repurchases under the January 2023 repurchase program as of March 29, 2026, were 12.0 million shares of common stock for $1,314.2 million at an average price per share of $109.62.

During the three months ended March 30, 2025, Teradyne repurchased 1.5 million shares of common stock for a total cost of $158.7 million at an average price of $107.21 per share.

The total cost of shares acquired includes commissions and related excise tax and is recorded as a reduction to retained earnings.

Dividends

Holders of Teradyne’s common stock are entitled to receive dividends when they are declared by Teradyne’s Board of Directors.

In January 2026, and January 2025, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.13 and $0.12 per share, respectively. Dividend payments for the three months ended March 29, 2026, and March 30, 2025 were $20.4 million and $19.4 million, respectively.

V. SUBSEQUENT EVENTS

On April 8, 2026, Teradyne and MultiLane formed a joint venture, MultiLane Test Products (“MLTP”), to which MultiLane contributed the assets of its test and measurement business. MLTP is expected to serve the growing demand from the AI Data Center equipment market by accelerating the development of test solutions for critical high speed data connections. In connection with the formation of MLTP, Teradyne obtained a controlling 75% ownership interest in MLTP for a total purchase price of approximately $157.8 million, subject to customary post-closing adjustments. MLTP will be included in the Product Test Segment.

On April 16, 2026, Teradyne acquired all of the issued and outstanding shares of TestInsight Ltd. (“TestInsight”) for a total purchase price of $29.0 million, subject to customary post-closing adjustments. TestInsight is a leading provider of semiconductor test development, validation, and conversion software widely used across the industry. TestInsight will be included in the Semiconductor Test Segment.

Due to the limited time since the date of these transactions, certain business combination disclosures are not available or included in this filing.

Item 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations

Statements in this Quarterly Report on Form 10-Q which are not historical facts, so called “forward-looking statements,” are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934, as amended. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those detailed in our filings with the Securities and Exchange Commission. See also Part II, Item 1A of this Quarterly Report on Form 10-Q and Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025. Readers are cautioned not to place undue reliance on these forward-looking statements which reflect management’s analysis only as of the date hereof. We assume no obligation to update these forward-looking statements to reflect actual results or changes in factors or assumptions affecting forward-looking statements, except as may be required by law.

Overview

We are a leading global provider of automated test equipment and robotics products. Our automated test systems are used to test semiconductors, wireless products, data storage, silicon photonics, and complex electronics systems in many industries including consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Our robotics product offerings consist primarily of collaborative robotic arms and autonomous mobile robots used by global manufacturing, logistics and industrial customers to improve quality and increase manufacturing and material handling efficiency, while reducing costs. Our automated test equipment and robotics products and services include:

• semiconductor test (“Semiconductor Test”) systems;
• robotics (“Robotics”) products; and
• product test (“Product Test”) systems, which includes circuit-board test and inspection systems, wireless test systems, photonic integrated circuit (“PIC”) test solutions, and defense and aerospace test instrumentation and systems.

The market for our test products is concentrated with a limited number of significant customers accounting for a substantial portion of the purchases of test equipment. A few customers drive significant demand for our products both through direct sales and sales to the customer’s supply partners. We expect that sales of our test products will continue to be concentrated with a limited number of significant customers for the foreseeable future.

During the first quarter of 2026, our Semiconductor Test segment delivered record results, driven primarily by continued strength in Artificial Intelligence (“AI”)–related demand across compute and memory applications resulting in Semiconductor Test revenue alone exceeding $1.0 billion for the first time. AI-related customer demand continues to be significant in the quarter, reflecting the investments by hyperscalers, vertically integrated producers, and merchant compute customers in AI data center infrastructure. Memory test revenue remained at near-record levels, driven by robust demand for high bandwidth memory (“HBM”) and DRAM test solutions supporting AI compute deployments. The first quarter results reflect our ongoing focus on AI-dominant testing requirements. Our Robotics segment achieved its fourth consecutive quarter of sequential revenue growth, which is notable given the typical seasonality associated with this business. Demand was supported by customer engagement across e‑commerce, electronics manufacturing, semiconductor, and AI data center end markets. In the Product Test Group, first quarter revenue increased year over year, supported by continued strength in defense and aerospace applications. Across the company, our first quarter results reflect strong execution and the benefits of prior investments in product development, manufacturing capacity, and strategic partnerships, which we expect to continue to support our performance over the course of 2026.

On April 8, 2026, we and MultiLane formed a joint venture, MultiLane Test Products (“MLTP”), to which MultiLane contributed the assets of its test and measurement business. MLTP is expected to serve the growing demand from the AI Data Center equipment market by accelerating the development of test solutions for critical high speed data connections. In connection with the formation of MLTP, we obtained a controlling 75% ownership interest in MLTP for a total purchase price of approximately $157.8 million, subject to customary post-closing adjustments. MLTP will be included in our Product Test Segment.

On April 16, 2026, we acquired all of the issued and outstanding shares of TestInsight Ltd. (“TestInsight”) for a total purchase price of $29.0 million, subject to customary post-closing adjustments. TestInsight is a leading provider of semiconductor test development, validation, and conversion software widely used across the industry. TestInsight will be included in our Semiconductor Test Segment.

Our capital allocation plan will continue to be balanced between investing in organic and inorganic growth and returning cash to shareholders through share repurchases and dividends while maintaining cash balances to enable us to run the business. During the first three months of 2026 we returned $25.9 million to shareholders through $5.5 million of share buybacks and $20.4 million of

dividend payments. In April 2026, we paid a combined $166.7 million towards the formation of MLTP and the acquisition of TestInsight.

Government Regulations

We are subject to numerous U.S. and foreign laws and regulations, including, without limitation, tariffs, trade sanctions, trade barriers, trade embargoes, regulations relating to import-export control, technology transfer restrictions, and other laws and regulations. Additionally, U.S. and foreign governmental authorities have taken, and may continue to take, administrative, legislative or regulatory action that could impact our operations. We believe that our operations are in material compliance with applicable trade regulations. The costs we incurred in complying with applicable trade regulations for the three months ended March 29, 2026 were not material, however, compliance with these laws has limited our ability to compete in certain regions. It is possible that future developments, including changes in laws and regulations or government policies, could lead to material costs, and such costs may have a material adverse effect on our future business or prospects.

We have paid certain tariffs on imported products under the International Emergency Economic Powers Act (“IEEPA”) since the inception of the IEEPA tariffs in 2025. On April 20, 2026, U.S. Customs and Border Protection (“CBP”) began accepting refund claims related to these tariffs. While we have submitted refund requests, the timing and impact of any potential refunds remain uncertain, however, we do not expect the impact to be material to our financial position or results of operations.

For information regarding risks associated with import-export control regulations and similar applicable laws and regulations, see Part II - Item 1A “Risk Factors- Risks Related to Legal and Regulatory Compliance” included elsewhere in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Critical Accounting Policies and Estimates

We have identified the policies which are critical to understanding our business and our results of operations. The impact and any associated risks related to these estimates on our business operations is discussed throughout Management’s Discussion and Analysis of Financial Condition and Results of Operations where such policies affect our reported and expected financial results. There have been no significant changes during the three months ended March 29, 2026, to the items disclosed as our critical accounting policies and estimates in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Critical accounting estimates are complex and may require significant judgment by management. Changes to the underlying assumptions may have a material impact on our financial condition and results of operations. These estimates may change, as new events occur and additional information is obtained. Actual results could differ significantly from these estimates under different assumptions or conditions.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Actual results may differ significantly from these estimates under different assumptions or conditions.

SELECTED RELATIONSHIPS WITHIN THE CONDENSED CONSOLIDATED

STATEMENTS OF OPERATIONS

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
Percentage of revenues:
Revenues:
Products		89	%		82	%
Services		11			18
Total revenues		100			100
Cost of revenues:
Cost of products		35			33
Cost of services		4			7
Total cost of revenues (exclusive of acquired intangible <br>   assets amortization shown separately below)		39			39
Gross profit		61			61
Operating expenses:
Selling and administrative		13			23
Engineering and development		11			17
Acquired intangible assets amortization		—			1
Restructuring and other		—			2
Total operating expenses		24			43
Income from operations		37			18
Non-operating (income) expense:
Interest income		—			(1	)
Interest expense		—			—
Other (income) expense, net		1			1
Income before income taxes and equity in net earnings of affiliate		36			17
Income tax provision		5			2
Income before equity in net earnings of affiliate		31			15
Equity in net earnings of affiliate		—			(1	)
Net income		31	%		14	%

Results of Operations

First Quarter 2026 Compared to First Quarter 2025

Revenues

Revenues by our reportable segments were as follows:

	For the Three Months<br> Ended
	March 29,<br>2026		March 30,<br>2025		Dollar<br>Change
	(in millions)
Semiconductor Test	$	1,110.8	$	542.5	$	568.3
Robotics		91.3		69.0		22.3
Product Test		80.4		74.2		6.2
	$	1,282.5	$	685.7	$	596.8

The increase in Semiconductor Test revenues of $568.3 million, or 104.8%, was driven primarily by higher sales in compute related to artificial intelligence applications. The increase in Robotics revenues of $22.3 million, or 32.3%, was primarily due to increased sales of collaborative robotic arms, partially offset by decreased sales of autonomous mobile robots. The increase in Product Test revenues of $6.2 million, or 8.4%, was driven primarily by higher Defense/Aerospace sales.

Revenues by country as a percentage of total revenues were as follows (1):

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025
Taiwan		41	%		28	%
Korea		19			12
China		11			19
United States		7			11
Europe		7			6
Malaysia		4			2
Singapore		3			8
Philippines		2			4
Thailand		1			2
Japan		1			2
Rest of World		4			6
		100	%		100	%

• Revenues attributable to a country are based on location of customer site.

Gross Profit

Our gross profit was as follows:

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025			Dollar/Point<br>Change
	(in millions)
Gross profit	$	780.9		$	415.3		$	365.6
Percent of total revenues		60.9	%		60.6	%		0.3

Gross profit as a percent of revenue increased by 0.3 points, primarily due to volume increase in Semiconductor Test.

Selling and Administrative

Selling and administrative expenses were as follows:

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025			Dollar<br>Change
	(in millions)
Selling and administrative	$	166.7		$	157.3		$	9.4
Percent of total revenues		13.0	%		22.9	%

The increase of $9.4 million in selling and administrative expenses was primarily driven by strategic investments in Semiconductor Test.

Engineering and Development

Engineering and development expenses were as follows:

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025			Dollar<br>Change
	(in millions)
Engineering and development	$	135.6		$	118.2		$	17.4
Percent of total revenues		10.6	%		17.2	%

The increase of $17.4 million in engineering and development expenses was primarily driven by strategic investments in Semiconductor Test.

Restructuring and Other

During the three months ended March 29, 2026, we recorded $3.4 million of restructuring and other charges, $1.7 million of which were acquisition and divestiture related expenses. During the three months ended March 29, 2026, we made $4.3 million of severance payments related to the 2025 Robotics restructurings.

During the three months ended March 30, 2025, we consolidated our Robotics go-to-market functions to better serve our customers. As a result, we recorded $11.4 million of employee severance charges, $9.2 million of which is related to the Robotics restructuring which impacted approximately 150 employees. Additionally, we recorded $2.0 million of acquisition and divestiture related costs and $1.1 million related to lease terminations.

Interest and Other

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025			Dollar<br>Change
	(in millions)
Interest income	$	(2.4	)	$	(5.1	)	$	2.7
Interest expense		3.2			0.8		$	2.4
Other (income) expense, net		6.6			6.1		$	0.5

The decrease in interest income was driven primarily by lower average cash balances and lower interest rates in the current period. The increase in interest expense was driven primarily by higher borrowings under the Revolving Credit Facility.

Income (Loss) Before Income Taxes and Equity in Net Earnings of Affiliate

	For the Three Months<br> Ended
	March 29,<br>2026			March 30,<br>2025			Dollar<br>Change
	(in millions)
Semiconductor Test	$	468.1		$	155.8		$	312.3
Product Test		4.7			8.6			(3.9	)
Robotics		(1.0	)		(37.2	)		36.2
Corporate and Eliminations (1)		(6.1	)		(8.2	)		2.1
	$	465.7		$	119.0		$	346.7

• Included in Corporate and Eliminations are interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, severance charges, pension and postretirement plan actuarial gains (losses), and acquisition and divestiture related expenses.

The increase in income before income taxes and equity in net earnings of affiliate in Semiconductor Test was driven primarily by higher sales in compute related to artificial intelligence applications. The decrease in income before income taxes and equity in net earnings of affiliate in Product Test was driven primarily by strategic investments, partially offset by higher revenue. The decrease in loss before income taxes and equity in net earnings of affiliate in Robotics was primarily due to higher revenue and lower operating expenses primarily as a result of restructuring actions taken in 2025.

Income Taxes

The effective tax rate for the three months ended March 29, 2026, and March 30, 2025, was 13.3% and 12.2%, respectively. The increase in the effective tax rate from the three months ended March 30, 2025, to the three months ended March 29, 2026, is primarily attributable to lower benefits from tax credits, lower benefits related to U.S. taxation of international income, and higher expense related to Pillar Two. These impacts were partially offset by increased benefits from equity compensation and a projected shift in the geographic distribution of income.

Contractual Obligations

There have been no changes outside of the ordinary course of business to our contractual obligations as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2025.

Liquidity and Capital Resources

Sources of Liquidity

	March 29, 2026		December 31, 2025		Change
	(in millions)
Cash, cash equivalents and marketable securities:
Cash and cash equivalents	$	241.9	$	293.8	$	(51.9	)
Short-term marketable securities		3.7		28.2		(24.5	)
Long-term marketable securities		148.4		126.3		22.1
Total cash, cash equivalents and marketable securities:	$	394.0	$	448.3	$	(54.3	)
Short-term debt	$	—	$	200.0	$	(200.0	)

Our cash, cash equivalents and marketable securities balances decreased by $54.3 million in the three months ended March 29, 2026, to $394.0 million. Cash decreased primarily due to net repayments of borrowings on revolving credit facility of $200.0 million, partially offset by operating cash proceeds.

Our Third Amended and Restated Revolving Credit Agreement, amended as of November 7, 2023 (the “Credit Agreement”) provides a six-year, senior secured revolving credit facility of $750.0 million (the “Credit Facility”). As of March 29, 2026, Teradyne did not have an outstanding balance under the Credit Agreement. The Credit Agreement is set to expire on December 10, 2026. See

Note I: “Debt” for more information regarding our Credit Agreement. As of March 29, 2026, we were in compliance with all covenants under the Credit Agreement. We intend to extend the Credit Facility later in 2026.

Cash Flows

	March 29, 2026			March 30, 2025			Change
	(in millions)
Net cash (used for) provided by:
Operating activities		265.1			161.6			103.5
Investing activities		(67.3	)		(61.8	)		(5.5	)
Financing activities		(250.2	)		(176.8	)		(73.4	)
Effects of exchange rate changes on cash and cash equivalents		0.6			(0.8	)		1.4
Net increase (decrease) in cash and cash equivalents	$	(51.8	)	$	(77.7	)		25.9
Net change in operating assets and liabilities, net of businesses acquired		(195.5	)		7.7			(203.2	)

Operating Activities

Operating activities during the three months ended March 29, 2026, provided cash of $265.1 million. Changes in operating assets and liabilities, net of businesses acquired used cash of $195.5 million due to a $297.1 million increase in operating assets and a $101.7 million increase in operating liabilities. The increase in operating assets was primarily due to increases in accounts receivable of $322.0 million. The increase in operating liabilities was primarily due to increases in income taxes and in deferred revenue and customer advances of $66.3 million and $52.0 million, respectively.

Operating activities during the three months ended March 30, 2025, provided cash of $161.6 million. Changes in operating assets and liabilities used cash of $7.7 million due to a $12.0 million increase in operating liabilities, partially offset by a $4.3 million increase in operating assets. The change in operating assets was primarily due to a $31.0 million increase in inventories, partially offset by a $13.1 million and $13.7 million decrease in accounts receivable and other assets, respectively. The change in operating liabilities was due to growth in accounts payable of $48.0 million, a $13.0 million uptick in income taxes, and a $10.2 million increase in deferred revenue and customer advance payments, partially offset by a $58.0 million decrease in accrued other and a $1.3 million decline in retirement plan contributions.

Investing Activities

Investing activities during the three months ended March 29, 2026, included $64.7 million used for the purchases of property, plant & equipment and $40.8 million used for the purchases of marketable securities, partially offset by $27.3 million provided by proceeds from sales of marketable securities and $10.9 million provided by proceeds from maturities of marketable securities.

Investing activities during the three months ended March 30, 2025, included $64.0 million used for the purchase of property, plant and equipment, $17.0 million used for the acquisition of business, net of cash acquired, $10.8 million used for the purchase of marketable securities, and $3.0 million used for investments in businesses, partially offset by $27.4 million in proceeds from the maturities of marketable securities and $5.6 million in proceeds from the sale of marketable securities.

Financing Activities

Financing activities during the three months ended March 29, 2026, included $200.0 million in net repayments of borrowings on revolving credit facility, $39.4 million used for payments related to net settlement of employee stock compensation awards, $20.4 million used for dividend payments, and $5.5 million used for the repurchase common stock, partially offset by $15.1 million provided by issuance of common stock under stock purchase and stock options plans.

Financing activities during the three months ended March 30, 2025, included $157.5 million used for the repurchase of 1.5 million shares of common stock at an average price of $107.21 per share, $19.4 million used for dividend payments and $14.7 million used for payments related to net settlements of employee stock compensation awards, partially offset by $14.8 million in proceeds from the issuance of common stock under employee stock purchase and stock option plans.

Material Cash Requirements

In January 2026 and January 2025, our Board of Directors declared a quarterly cash dividend of $0.13 and $0.12 per share, respectively. Dividend payments for the three months ended March 29, 2026, and March 30, 2025, were $20.4 million and $19.4 million, respectively.

In January 2023, our Board of Directors approved a repurchase program for up to $2.0 billion of common stock. During the three months ended March 29, 2026, we repurchased less than 0.1 million shares of common stock for $5.5 million, which excludes related excise tax, at an average price of $229.00 per share. The cumulative repurchases under the 2023 repurchase program as of March 29, 2026, were 12.0 million shares of common stock for $1,302.8 million, which excludes related excise tax, at an average price per share of $109.62. During the three months ended March 30, 2025, we repurchased 1.5 million shares of common stock for $157.5 million, which excludes related excise tax, at an average price of $107.21 per share.

While we have previously declared a quarterly cash dividend and authorized a share repurchase program, we may reduce or eliminate the cash dividend or share repurchase program in the future. Cash dividends and stock repurchases are subject to the discretion of our Board of Directors, which will consider, among other things, our earnings, capital requirements and financial condition.

We believe our cash, cash equivalents, marketable securities and senior secured revolving credit facility will be sufficient to pay our quarterly dividend and meet our working capital and expenditure needs for at least the next twelve months. Inflation has not had a significant long-term impact on earnings. As of March 29, 2026, we were in compliance with all covenants under the Credit Agreement.

Equity Compensation Plans

In addition to our 1996 Employee Stock Purchase Program as discussed in Note S: “Stock-Based Compensation” in our 2025 Annual Report on Form 10-K, we have a 2006 Equity and Cash Compensation Incentive Plan (the “2006 Equity Plan”).

The purpose of the 1996 Employee Stock Purchase Plan is to encourage stock ownership by all eligible employees of Teradyne. The purpose of the 2006 Equity Plan is to provide equity ownership and compensation opportunities in Teradyne to our employees, officers and directors. Both plans were approved by our shareholders.

Recently Issued Accounting Pronouncements

For a description of accounting changes and recent accounting pronouncements, including the expected dates of adoption and estimated effects, if any, on our consolidated financial statements, see Note C: “Recently Issued Accounting Pronouncements” of this Form 10-Q.

Item 3: Quantitative and Qualitative Disclosures about Market Risks

For “Quantitative and Qualitative Disclosures about Market Risk” affecting Teradyne, see Part 2 Item 7A, “Quantitative and Qualitative Disclosures about Market Risks,” in our Annual Report on Form 10-K filed with the SEC on February 19, 2026. There were no material changes in our exposure to market risk from those set forth in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Item 4: Controls and Procedures

As of the end of the period covered by this report, our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) or Rule 15d-15(f) promulgated under the Exchange Act. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended March 29, 2026, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 2: Unregistered Sales of Equity Securities and Use of Proceeds

In January 2023, Teradyne’s Board of Directors cancelled our 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. During the three months ended March 29, 2026, we repurchased 0.02 million shares of common stock for a total cost of $5.5 million at an average price of $229.00 per share. We record share repurchases at cost, which includes broker commissions and related excise taxes. During the three months ended March 30, 2025, we repurchased 1.5 million shares of common stock for $158.7 million at an average price of $107.21 per share.

The following table includes information with respect to repurchases we made of our common stock during the three months ended March 29, 2026, (in thousands except per share price):

Period	Total<br>Number of<br>Shares<br>(or Units)<br>Purchased			Average<br>Price Paid per<br>Share (or Unit)			Total Number of<br>Shares (or Units)<br>Purchased as Part of<br>Publicly Announced<br>Plans or Programs		Maximum Number<br>(or Approximate Dollar<br>Value) of Shares (or<br>Units) that may Yet Be<br>Purchased Under the<br>Plans or Programs (2)
January 1, 2026 - January 25, 2026		17		$	220.76			16	$	687,764
January 26, 2026 - February 22, 2026		181		$	244.59			8	$	685,844
February 23, 2026 - March 29, 2026		1		$	319.17			—	$	685,844
		199	(1)		243.10	(1)		24

• Includes approximately 175,362 shares at an average price of $245.04 withheld from employees for the payment of taxes.
• As of January 1, 2023, share repurchases net of share issuances are subject to a 1% excise tax under the Inflation Reduction Act. Excise tax incurred is included as part of the cost basis of shares repurchased in the Condensed Consolidated Statements of Convertible Common Shares and Stockholders’ Equity.

We satisfy U.S. federal and state minimum withholding tax obligations due upon the vesting and the conversion of restricted stock units into shares of our common stock, by automatically withholding from the shares being issued, a number of shares with an aggregate fair market value on the date of such vesting and conversion that would satisfy the minimum withholding amount due.

Item 4: Mine Safety Disclosures

Not Applicable

Item 5: Other Information

10b5-1 Trading Plans

Our officers (as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (“Section 16 Officers”) and directors from time to time enter into contracts, instructions or written plans for the purchase or sale of our securities that are intended to satisfy the conditions specified in Rule 10b5-1(c) under the Exchange Act for an affirmative defense against liability for trading in securities on the basis of material nonpublic information. We refer to these contracts, instructions, and written plans as “Rule 10b5-1 trading plans” and each one as a “Rule 10b5-1 trading plan.” During our fiscal quarter ended March 29, 2026, the following Section 16 Officers or directors adopted, modified or terminated Rule 10b5-1 trading plans:

Gregory Smith, President and Chief Executive Officer

Gregory Smith, our President and Chief Executive Officer, entered into a new Rule 10b5-1 trading plan on February 12, 2026. The Rule 10b5-1 trading plan provides that Mr. Smith, acting through a broker, may sell up to an aggregate of 44,597 shares. Subject to price limits, the first date that sales of any shares are permitted to be made under the trading arrangement is May 15, 2026. Mr. Smith’s plan is scheduled to terminate on February 26, 2027, subject to earlier termination upon the sale of all shares subject to the plan, upon termination by Mr. Smith or the broker, or as otherwise provided in the plan.

Ryan Driscoll, Vice President and General Counsel

Ryan Driscoll, our Vice President and General Counsel, entered into a new Rule 10b5-1 trading plan on February 5, 2026. The Rule 10b5-1 trading plan provides that Mr. Driscoll, acting through a broker, may sell up to an aggregate of 680 shares. Subject to price limits, the first date that sales of any shares are permitted to be made under the trading arrangement is May 7, 2026. Mr. Driscoll’s plan is scheduled to terminate on December 31, 2026, subject to earlier termination upon the sale of all shares subject to the plan, upon termination by Mr. Driscoll or the broker, or as otherwise provided in the plan.

Shannon Poulin, President of Semiconductor Test

Shannon Poulin, the President of our Semiconductor Test Division, entered into a new Rule 10b5-1 trading plan on February 19, 2026. The Rule 10b5-1 trading plan provides that Mr. Poulin, acting through a broker, may sell up to an aggregate of 4,432 shares. Subject to price limits, the first date that sales of any shares are permitted to be made under the trading arrangement is May 21, 2026. Mr. Poulin’s plan is scheduled to terminate on March 31, 2027, subject to earlier termination upon the sale of all shares subject to the plan, upon termination by Mr. Poulin or the broker, or as otherwise provided in the plan.

Regan Mills, President of Product Test

Regan Mills, the President of our Product Test Division, entered into a new Rule 10b5-1 trading plan on March 10, 2026. The Rule 10b5-1 trading plan provides that Mr. Mills, acting through a broker, may sell up to an aggregate of 1,369 shares. Subject to price limits, the first date that sales of any shares are permitted to be made under the trading arrangement is January 27, 2027. Mr. Mills’ plan is scheduled to terminate on April 6, 2027, subject to earlier termination upon the sale of all shares subject to the plan, upon termination by Mr. Mills or the broker, or as otherwise provided in the plan.

Marilyn Matz, Director

Marilyn Matz, a member of our Board of Directors, entered into a new Rule 10b5-1 trading plan on February 13, 2026. The Rule 10b5-1 trading plan provides that Ms. Matz, acting through a broker, may sell up to an aggregate of 14,400 shares. Subject to price limits, the first date that sales of any shares are permitted to be made under the trading arrangement is May 15, 2026. Ms. Matz’s plan is scheduled to terminate on May 14, 2027, subject to earlier termination upon the sale of all shares subject to the plan, upon termination by Ms. Matz or the broker, or as otherwise provided in the plan.

Mercedes Johnson, Director

Mercedes Johnson, a member of our Board of Directors, entered into a new Rule 10b5-1 trading plan on March 4, 2026. The Rule 10b5-1 trading plan provides that Ms. Johnson, acting through a broker, may sell up to an aggregate of 2,000 shares. Subject to price limits, the first date that sales of any shares are permitted to be made under the trading arrangement is June 2, 2026. Ms.

Johnson’s plan is scheduled to terminate on May 28, 2027, subject to earlier termination upon the sale of all shares subject to the plan, upon termination by Ms. Johnson or the broker, or as otherwise provided in the plan.

Item 6: Exhibits

Exhibit<br><br>Number	Description
31.1	Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
31.2	Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
32.1	Certification of Principal Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
32.2	Certification of Principal Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
101.INS	Inline XBRL Instance Document
101.SCH	Inline XBRL Taxonomy Extension Schema with Embedded Linkbase Documents
104	Cover Page Interactive Data File (formatted as Inline XBRL, and contained in Exhibit 101)
*	Management Contract or Compensatory Plan

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

TERADYNE, INC.
Registrant
/s/ MICHELLE TURNER
Michelle Turner<br><br>Vice President,<br><br>Chief Financial Officer and Treasurer<br><br>(Duly Authorized Officer<br><br>and Principal Financial Officer)<br><br>May 1, 2026

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Gregory S. Smith, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Teradyne, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 1, 2026

By:	/s/ GREGORY S. SMITH
	Gregory S. Smith
	Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Michelle Turner, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Teradyne, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 1, 2026

By:	/s/ MICHELLE TURNER
	Michelle Turner
	Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Teradyne, Inc. (the “Company”) on Form 10-Q for the period ended March 29, 2026, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gregory S. Smith, Chief Executive Officer of the Company, certify pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/s/ GREGORY S. SMITH
Gregory S. Smith
Chief Executive Officer
May 1, 2026

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Teradyne, Inc. (the “Company”) on Form 10-Q for the period ended March 29, 2026, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michelle Turner, Chief Financial Officer of the Company, certify pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/s/ MICHELLE TURNER
Michelle Turner
Chief Financial Officer
May 1, 2026